Rotation axes in sample and crystal coordinate systems

[Filippe Ferreira]

Hi! 

Is it possible to make plots of rotation axes in crystal and sample coordinate systems, such as the hkl/oxford's channel package (attached picture), in MTEX?

I tried:

plotAxisDistribution(grains('phase1'),'angle'>0*degree & 'angle'<15*degree,'smooth','antipodal')

annotate([Miller(1,0,0),Miller(1,1,0),Miller(0,0,1),Miller(2,-1,0)],'all','labeled')

 but the 'angle' command seems to have no effect.

Thanks in advance,

Filippe.

[Ralf Hielscher]

Hi Filippe Ferreira,

so far there is no out of the box solution in MTEX. But we are working at implementing this in a future release.

Just to help us, what are those plots used for, i.e., how are they interpreted? In know people looking for twinnnings and similar misorientation relations, but those you will not see with these kinds of plots.

I would be happy if you could help us.

Ralf.

[Luiz Fernando Grafulha Morales]

Hi Ralf,


These are misorientation axes plots, one can certainly do that on MTEX, but you have to create a small loop to calculate the IPFs for different misorientation axes, something like, define the misorientation angles, the intervals you want, etc, I can send you a small very rough script I've been using for that for plotting in IPFs. These data can be used to predict  grain boundary orientations in relation to crystallographic planes for different misorientation angles, but you have to make certain assumptioons. Other people use these data for example to interpret active slip systems, but this is not a very good approach. let me know if I can be of further help


cheers


Luiiz

[Luiz Fernando Grafulha Morales]

[Filippe Ferreira]

We use it as complementary for (inverse) pole figure data, so we have alternatives to interpretate how density maximas are distributed along certain intervals of misorientation angles in sample and crystal reference system. Help will be very appreciated, Mr. Morales. Could you send the script you are using?Thank you very much.